also the use of technology. closed circuit television systems can be adjusted so as to recognize -- to be able to recognize things that are unusual so if there's a isolated location and someone enters that location the cameras can be trained or programmed, i should say, with rules that will recognize that and send an alert. if a bag is dropped and left in a location for a particular amount of time, the video analytics will recognize that and send an alert. and to your question as to when does it become too much, this type of surveillance, these types of screenings, things like that the courts will let us know. the courts have always let police, let law enforcement agencys if they've gone too far and crossed the line. >> pelley:. >> brown: okay, ed cannon, jim davis, thank you both very much. >> thank you. >> brown: find out how much money different metropolitan areas-- including boston-- have received from the department of homeland security. there's a graphic on our home page. >> ifill: now, new developments in